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Author Affiliations: Department of Psychiatry, Gachon University of Medicine and Science, Incheon (Drs Kim, Lee, S.-J. Cho, and I.-H. Cho), Department of Psychiatry, College of Medicine, Ewha Women's University, Seoul (Dr Weonjeong Lim), and Department of Child Welfare, Namseoul University, Cheonan (Dr Wonshin Lim), Republic of Korea.
Objective To investigate the relationship between insufficient sleep and poor attention in Korean adolescents, adjusting for potential confounding factors of depressed mood and habitual snoring.
Design School-based cross-sectional study.
Setting Eight high schools in 3 cities in the Republic of Korea.
Participants A sample of 2638 urban high school students (42.2% male and 57.8% female; mean [SD] age, 17.3 [0.6] years [age range, 14-19 years]) completed questionnaires and computerized attention tasks during the school term.
Exposure Weekend catch-up sleep.
Main Outcome Measures Self-reported sleep schedules and habits, including sleep duration, bedtime, wake-up time, depressed mood, and habitual snoring. Also measured were numbers of omission and commission errors on computerized attention tasks.
Results The mean (SD) sleep duration on weekdays was 5 hours 42 minutes (1 hour 0 minutes) per day and on weekends was 8 hours 24 minutes (1 hour 36 minutes) per day. The mean (SD) weekend catch-up sleep was 2 hours 42 minutes (1 hour 42 minutes) per day. After adjusting for age, sex, depressed mood (Beck Depression Inventory score, ≥10), habitual snoring, and weekday sleep duration, increased weekend catch-up sleep was significantly associated with more omission and commission errors on sustained attention tasks (P < .001 and P = .03, respectively) and on divided attention tasks (P = .01 and P = .04, respectively).
Conclusions Increased weekend catch-up sleep as an indicator of insufficient weekday sleep is associated with poor performance on objective attention tasks. Assessment of catch-up sleep and sleep duration may be useful for physicians to evaluate sleep insufficiency and its adverse effects on attention in adolescents.
Kim SJ, Lee YJ, Cho S, Cho I, Lim W, Lim W. Relationship Between Weekend Catch-up Sleep and Poor Performance on Attention Tasks in Korean Adolescents. Arch Pediatr Adolesc Med. 2011;165(9):806–812. doi:10.1001/archpediatrics.2011.128
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